/Engine/Plugins/FX/Niagara/Source/Niagara/Public/NiagaraRendererProperties.h
Utility function that can be used to fix up old vec3 bindings into position bindings.
static void ChangeToPositionBinding ( [FNiagaraVariableAttributeBinding](API\Plugins\Niagara\FNiagaraVariableAttributeBinding) & Binding )